Weight-testing machine.



E. H. WUGH. 'WEIGHT TEsTmG MAcHrNE.

APPLlCATlON FILED DEC.28, 1910.

Ptent-ed ay 4, 1915.

3 SHEETS-SHEET 1 E. H. WAUGH.

WEIGHT TESTING MACHINE.

, APPLICATION man Dc.2. 1910.'

Patented May 4, 1915.

3 SHEETS-SHEET 2 @wwe/14160@ E. H. WAUGH.

WEIGHT TESTING MACHINE.

APPLlcATloN man oEc.28. 19m.

3 SHEETS-*SHEET 3- Patented ay 4, 1915.

TE@ STATES PATE y EDWARD H. .'wAUGH, OF SEATTLE, WASHINGTON, ASSIGNOR TO SMITH CANNERY MACHINES CO., 0F SEATTLE, WASHINGTON, A CORPORATION 0F WASHINGTON.

WEIGHT-TESTING MACHINE.

Specification of Letters Patent.

Patented May a, 1915.

T0 all whom it may concern:

Be it known that I, EDWARD H. WAUGH, a citizen of the United States of America, and a resident of the city of Seattle, in the county of King and State of Washington, have invented certain new and useful Improvements in Weight-Testing Machines, of which the following is a specification.

My invention relates to machines of the above type, having more particular reference to apparatus for lweighing canned goods, and has fora fundamental object the provision of novel constructions and arrangements of parts through which general efiiciency is obtained. With this object in view the invention includes novel mechanisms for testing and assorting the tested cans, and further, in the weight testing devices being employed.

Further the invention consists in novel provisions for placing or depositing cans on testing means, and then shifting or ejecting said cans subsequently to the test.

With the above and other objects in view, to be referred to as my description progresses, my invention resides in the features of construction, arrangements and combinations of parts hereinafter described and succinctly defined in my annexed claims.

Referring to the accompanying drawings illustrating a preferred embodiment of my invention and wherein like numerals of reference indicate like parts throughout: Figure 1 .is a top plan of my machine, .parts being broken away. Fig. 2 is a longitudinal section taken on line 2-2 of Fig. l, with portions broken away. Fig. 3 is a horizontal section taken on line 3-3-of Fig 2, with the placing or depositing device in its other position of adjustment and illustrating by broken lines one of the switches adjusted outwardly. Fig. 4 is a transverse section taken on line 4--4 of Fig. 2, the placing or depositing device being removed.' Fig. 5 is a fragmentary detail view illustrating more particularly the4 controlling cams for the respective locking devices, and Fig. 6 is a fragmentary perspective illustrating more particularly the pivotal connection between.

a testing mechanism and associated rock shaft In carryingout my invention I provide suitable weight testing means conveniently comprising a pair of scales 1 with which is associated placing or depositing means, as 2, an asserting device comprising switches 3, and shifting or ejecting mechanism comprising devices 4, for thc cans, the term cans7 being herein used for the sake of brevity.

Placing or depositing means 2 and switches 3 each comprise a plurality of forwardly projecting vertically spaced arms, fixed to the depending end portions of respective vertical shafts 2, 3, journaled in an upper frame section 16, the said arms of the said placing or depositing device forming branches of a main supporting arm 2a and being arranged in advance of switches 3 and between scales 1.

In conjunction with the mechanism just set forth I have provided feed and delivery conveying means, indicated at 5 andG respectively, these conveniently comprising respective end portions of the upper run of an endless belt 7, the said upper run of this belt being seated in a longitudinally extending groove or way formed in the upper face of a base plate 8, which latter combinedl with the frame section 16, and suitable intermediate uprights 15, constitutes the main supporting frame of the machine.

Scales 1 have their platforms 1 arranged at the forward end' portion of the base 8 on opposite sides of conveying means 5, across which latter the placing or depositing device 2 moves to feed to the scales alternately.

-Devices 4, are each associated with a respective scale for movement across the face of its platform 1 to thereby remove the tested cans, the same throwing the latter against respective asserting switches 3 which control their direction of travel, the heavy cans or those of a predetermined or standard weight controlling said switches to adjust the same desirably outwardly to the position indicated in broken lines in Fig. 3, by which construction such cans are directed inwardly, by both switches, to the conveying means 6, while the light cans'or those underweight are ejected from respective sides of the machine, by the switches with the latter standing in their normal positions.

These scales, and their respective related shifting and asserting devices while being controlled for alternate operation, are identical in construction, and therefore a description of one will suffice. L

Platform 1 is suspended for vertical movement in a suitable opening of base plate 8 by a yoke 1, said yoke being provided with a stem part extending through frame section 16 and pivotally connected with a scale beam 10 fulcrumed, as at 10', on a bracket 10, and connected forwardly of its fulcrum, as by a hook extension 11, to a balance spring 12, preferably adjustably mounted in a housing 13, fixed to bracket 10".

Reference numeral 14 indicates links' ivotally connected to platform 1 and to ase plate 8, for guiding said platform, as is well understood. l

Reference numeral 17 indicates .a rock shaft journaled on frame section 16, as by adjustable end bearings 18, in the form of screws, and pivotally connected at 19 to scale beam 10 to partake of its movement, the said rock shaft being provided at its opposite end portion with an arm 20, which through rotary adjustment of' said rock shaft is movable to control the operation of switch actuator 21. Switch actuator 21 comprises a slide, mounted in a guide 22, consisting of a stand, for movement towardand from a drive shaft 23, a spring 24 tending to force said actuator toward said shaft and into the path of a suitable cam 25 thereof by which latter it is operated against the action of said spring 24.

To normally hold actuator 21 against movement I provide the same with an engaging part or jaw as for example a lug 26, which is adapted to engage arm 20, when the latter is inlowered or normal position. Through the action of springk 24v, said actuator at such time holds said arm 20 against anabutment or jaw 22', to thereby lock the scale, said abutment or jaw comprising suit- I able shoulders providedon guide 22 and suitably spaced to permit of the free passage of jaw 26 therebetween. Motion of switch actuator 21 is transmitted to its switch 3, through the medium of a connection 27, comprising a crank arm fixed to shaft 3, 'and having its free end portion pivoted to actuator 21, as in a suitable slot 21 thereof.

Shifting device 4 which comprises an arm, preferably provided with a yieldingly held tip or free end portion 4, is Xed to a vertical oscillatory shaft 28, suitably journaled in base 8 at the outer side edge of scale platform 1 and provided on its lower end portion with a lever arm 29 having a follower 29 adapted for engagement with a cam 30, 'having av groove of unequal radii, as clearly shown in Figs. 2 and 3, to effect comparatively quick oscillations or strokes of shifter `Throw portion 25a is elongated, as shown,

and consequently a comparatively long period is insured in which the operation of weighing a can can be performed.

Following cam surface portion 25a is a depression 25b which, when arm 20 is elevated permits of actuator 2 1 being projected forwardly, by spring r24, to adjust its switch 3 outwardly to guide the can, which will now be `shifted from scale platform 1 by a rearward stroke of shifter 4, onto conveyer 6. Upon the scale 1 being thus lrelieved of the weight of the can, its spring 12 serves to return its parts and arm 20 to normal position, and as said arm 20 is lowered, a quick rearward movement of actuator 21permits of said'arm being again`seated between jaws 22 and 26. This last named rearward movement of actuator H21 is effected by the cam raised portion 25, which latter is followed by a depression 25d which, extending to said raised portion-25a of the cam, insures, through arm 20 being firmly held, of the` scale platform being locked during thel positiomng of a can thereon by device 2.

device for regulating the feed of the cansto the placing device 2, this comprising a pair of stops arranged one in advance of the other and releasably held, as by set screws 33, to permit of their adjustment toward one another as may be desired in operating with cans of dierent diameter, on rock shafts 34 and 35 respectively for move,- ment across the conveyer 5 for alternate projectioninto the path'of the cans, whereby upon the release of one can by the inner thereof, the other will hold the succeeding cans in check..

A Guard 36 extending crosswise of endless belt adjacent the' rear edge portions of scale platform 1 'prevents cans escaping device 2 and further, serves to guide the cans during their movement toward said scale platforms through the action of said an elongated bearing 37 of frame section 16 and rotatably receives shaft 34, the latter having its inner end portion projecting beyond the former and journaled in an eX- tension 22 of stand 22, which also serves as an intermediate" bearing for drive shaft 23.

For operating shafts 34 and 35 as described, I provide the same with lever arms 34a and 35a respectively, connected by links, as 38, with adjacent arms of respective bell crank levers 39. The other arms of these bell crank, levers 39 are pivotally-connected by links 40 with engaging devices 4l, in

Athe form of rollers, mounted in swingingly supportedjcarriers 42 and yieldingly ,held by springs 43 in engagement with respective cams `44 on drive shaft 23.

Cams 44, which are substantially rectangular in form, to thereby effect two os-, cilla-tions of their related rock shafts to one rotation of shaft 23 are set at substantially right angles to one another whereby they operate alternately.

Reference numeral 45 indicates a driving rod pivotally connected to a crank pin 47 of the spiral gear 32 of one shaft 3l, and to an arm 46 of shaft 2', by which .power is transmitted from drive shaft 23 to the placing device 2 to oscillate the latter correlatively to movements of ejecting devices 4 to position a can for weighing subsequently to the retraction of an ejecting device.

Having thus described my invention, what vI claim as new, and desire to secure by Letters Patent of the United States ica, is:

1. In a weight testing machine, companion Weight testing mechanisms, means for feeding articles arranged between said testing mechanisms, a two-way feeding device for positioning the forwarded articles for. testing, means for removing the articles from said testing mechanisms, and independent means each under control of a respective one of the testing mechanisms for directing tested articles of a predetermined class to a common point.

2. In a weight testing machine, a Weight testing mechanism, pivotally supported means for ejecting the articles from said mechanism, means for advancing and retracting said ejecting means, directing means movable across the path of the ejected articles, and means controlled by said of Amertesting mechanism for operating said directing means.

3. In a weight testing machine, a weight `testing mechanism, directing means disposed to one side of said mechanism, means controlled by said testing mechanism for operating said directing means, means mounted on a relatively fixed part for ejecting the articles from said testing mechanism against said directing means, 'and means for advancing and retracting said ejecting means.

4. In a Weight testing machine, a weight testing mechanism, a delivery means, means movable across the path of the articles ejected from said mechanism for directing the same to said delivery means, means controlled by said testing mechanism foroperating said directing means, pivotally supported means for ejecting the articles from said mechanism, and means for swinging said pivotally supported means to impel the tested articles against said article directing means.

5. In a weight testing machinespaced weight testing mechanisms, means for feeding to said mechanisms alternately, a common delivery means, ejector means for ejecting the articles from said testing mechanisms, and means controlled from said testing mechanisms .for deiecting the ejected articles to said delivery means.

6. In a weight testinginachine, spaced weight testing mechanisms, means for feeding to said mechanisms alternately, a delivery means, ejector means for ejecting the articles from said testing mechanisms, means for operating said ejector means alterately, and independently movable means controlled from respective testing mechanisms for directing the ejected articles to said delivery means.

' 7. In a weight testing machine, companion weight testing mechanisms, means for feeding articles to said mechanisms alternately for testing, means for ejecting the tested articles from said testing mechanisms, means for directing articles ejected from each testing mechanism movable across the path of ejection, and means under c ontrol of said weight testing mechanisms for operating said directing means.

8. In a weight testing machine, companion weight testing mechanisms, a conveyer, means for feeding articles from said conveyer to said mechanisms alternately, a check device pivotally supported for movement in a plane perpendicular to said conveyer for holding the articles conveyed in check, and means for operating said check device and said feeding means alternately.

9. In a weight testing machine, a weight testing mechanism, means for feeding articles to said testing mechanism, means for controlling the feed of the articles by said first means comprising a pair of oscillatory check members supported one in advance of the other with their axes lengthwise vof the patli of feed for alternate projection into the path of the articles being fed, and means for advancing said check members alternately.

10.v In a weight testing machine, a weight i testing mechanism, means for feeding articles tol said testing mechanism, means for controlling the feed of the articles by said first means comprising a pair of check mem` other check member, and means for rocking Said supports to simultaneously retract one of said check members and advance the other.-

12. In a weight testing machine, a weight testing mechanism, means for feeding articles to said testing mechanism, .oscillatory supports over said feeding means, a pair of check members arranged one in advance of the other, and each mounted on a support, one of said check members being adjustably mounted for movement toward andfrom the other check member, and means for rocking said supports to simultaneously retract one of said check members and advance the other, the outer of said check devicesl having its lower portion formed with a camv face portion arranged' to' engage an article during advance movement ofthe check device, for the purpose specified.

` 13. In a weight testing machine, a weight testing mechanism, a locking device for holding said mechanism against operation including a bodily slidable gripping member, an opposing gripping member a spring vnormally 'pressing said gripping member for operation of the latter, and means for shifting said gripping member periodically against the action of'said spring to release said testing mechanism for operation.

141. In a weight testing machine, a weight testing` mechanism including a receiving platform, a movable locking member, means engaged by said locking member for holding said mechanism against operation, means for shifting said locking member periodically, and a connection between said first means and said testing mechanism for effecting the withdrawal of said irst means from 4alsace@ the path of said locking member upon lowerling of the platform of said testing mechamsm.

15. In a weight testing machine, a weight testing mechanism including a receiving platform, a movable locking member, means engaged by said locking member for holding said mechanism against operation, means for shifting said locking member periodi-l cally, a connection between said first means and said testing mechanism for effecting the withdrawal of the said first means from'the path of said locking member upon lowering of the platform of said testing mechanism, means for ejecting articles from the platform of said testing mechanism, and a directing means movable across 'the' path of ejection of the articles' connected, to said lockin member for actuation thereby.

16. n a weight testing machine, a weight testing mechanism including a receiving platform, a movable locking member, means engaged by said locking member for holding lsaid mechanism against operation, resilient means for actuating'said locking member in one'direction, means for shifting said locking member periodically in the reverse direction, a connection between said first means and said mechanism for effecting the withdrawal of the said first means from thev path of said locking memben'upon lowering of the platform of said testing mechanism.

17. In a-weight testing machine, a weight' testing mechanism, a pair of jaws, means supporting one of said jaws for movement past the other, a yieldinor means tending to force said lirst means in XJthe said last named direction, a member normally engaged between said jaws connected for movement from such position by said testing meclia' nism, and means for moving said movable jaw periodically against the action .of said yielding means.

18. In a weight testing machine, a weight testingv mechanism, av pair of jaws, means supporting one of said jaws for movement past the other, yielding means tending to force said first means in the said last named direction, a member normally engaged between said jaws connected fo'r movement from such position by said testing mechanism,and means for'moving said movable jaw periodically against the action of said yielding means. v

19. In a weight testing machine, a weight testing mechanism, a pair of jaws, means supporting'one of said jaws for movement past the other, yieldingv means tendingto force said first means in the said last named direction, a member normally engaged between said jaws connected for movement from such position by said testing mecha--v nism, means for moving said movable jaw periodically against the action of said yielding means, means for ejecting the articles from said testing mechanism, and a directing means connected with said first means for movement thereby across the path of delivery of the tested articles.

20. In a Weight testing machine, weight testing mechanisms, means for removing tested articles from said mechanisms alternately, a delivery means, and-independent means each associated `with a respective Weight testingmechanism and controlled thereby for operation independently of the otherl and in time with said first means for directing tested articles to said delivery means.

21. yIn a Weight testing machine, companion Weight testing mechanisms, means for feeding articles to said mechanisms alternately, means for removing tested articles from said mechanisms, independently movable means for directing articles removed from said mechanisms toward a common point, and means connecting each of said independently movable means with a respective one of said mechanisms to be controlled thereby in its operation.

22. In a Weight testing machine, companion Weight testing mechanisms, means for removing tested articles from said mech-V anisms, a delivery means,

and a directing means for each weight testing mechanism controlled thereby for directing ejected articles to said delivery means.

23. In va Weight testing machine, companion Weight testing mechanisms, means for feeding articles to said mechanisms, means for removing tested articles lfrom said mechanisms alternately, and oppositely disposed' independently movable directing means each under control of its respective' mechanism for directing v to such common point.

Signed at Seattle, l/Vashington, this 16 day of December, 1910.

EDWARD H.v WAUGH.

Witnesses AnLrrA ADAMS, ERNESTINE Dnsrnnrs., 

